using System;

​

public class Program

    {

        public static  void Main()

        {

            ClassA a = new ClassC();

            //Console.WriteLine(a.Print());

        }

        public class ClassA

        {

            public virtual string Print()

            {

                return "ClassA";

            }

        }

        public class ClassB : ClassA

        {

            public override string Print()

            {

                return "ClassB";

            }

        }

        public class ClassC : ClassB

        {

            public new string Print()

            {

                return "ClassC";

            }

        }

    }